Onasemnogene-abeparvovec administration to premature infants with spinal muscular atrophy

Altres autors/es

Institut Català de la Salut

[Brown SM] Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. [Ajjarapu AS] Department of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA. [Ramachandra D] Department of Genetics, Advocate Children’s Hospital, Oak Lawn, Illinois, USA. [Blasco-Pérez L, Costa-Roger M, Tizzano EF] Grup de Recerca de Medicina Genètica, Vall d’Hebron Institut de Recerca (VHIR), Barcelona, Spain. Àrea de Genètica Clínica i Molecular, Vall d’Hebron Hospital Universitari, Barcelona, Spain

Vall d'Hebron Barcelona Hospital Campus

Data de publicació

2024-11-25T08:03:45Z

2024-11-25T08:03:45Z

2024-11



Resum

Premature; Spinal muscular atrophy


Prematurs; Atròfia muscular espinal


Prematuros; Atrofia muscular espinal


Twin girls born at 30 weeks' gestation with spinal muscular atrophy (SMA) received onsasemnogene-abeparvovec (OA) at 3.5 weeks of life. They had no treatment-related adverse events, normal acquisition of motor milestones, and normal neurological examination at 19 months. Genotyping revealed 0 copies of SMN1 and a single, hybrid SMN2 gene containing the positive genetic modifier c.835-44A>G. This was associated with full-length SMN2 blood mRNA expression levels similar to a 2 copy SMA infant. The observed favorable outcomes are likely due to the genetic modifier combined with early drug administration enabled by prematurity.


This work was supported in part by a Senator Paul D. Wellstone Muscular Dystrophy Specialized Research Center grant from the NINDS of the National Institutes of Health P50NS053672 (KDM, ASA) and NINDS R35 NS122306 (CJS).

Tipus de document

Article


Versió publicada

Llengua

Anglès

Publicat per

Wiley

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